Kenwood NX-200 Service Manual page 89

AT
CONTROL UNIT (X53-4590-XX)
+B
6.05V
D408
DC/DC
CONVERTER
CONTROL
A
SB1
R466
100k
D408
KDS-121-P
KDS-121-P
R469
R465
470k
10k
SCTAMI
3.32V
31BU
D413
RTC BATT
CONTROL
KDR720F-P
RTC BATT
CONTROL
SBC
PGND
38M
15
21
9
IFADCN
SUB (GPS) UNIT (X58-5240-10)
CN10
26 25
24
23
22 21
CN8
20
19
5C
17
18
15
16
14 5V
13 AG
12 11
10 AG
9 DG
8 OPT5
7
6 5
4 RXD
3
TXD
2 1
AU
SCHEMATIC DIAGRAM
POWER SUPPLY
CN402
BATT INT
7.49V
IC414
DC SW
XC61CC5602N-G
Q408
EMD12
RESET
A
7.46V
D412
DC SW
CONTROL
7.49V
DC SW
3.32V
3.32V
Q413
A 2SA1955A-F
DC SW
CONTROL
Q412
SSM3K15TE(F)
A
A
Q409
2SA1955A-F
D411
DC SW
2.98V
Q410
SSM3K15TE(F)
A A
A V R
I C 4
B U 3 1 T D 3 W G
R11
1 5
V I N
VoUT
10
2
G N D
3 S T B Y 4
N C
R17
1k
I C 2
TC7WH126FU-F
1 G1 8
V C C
R10
2 A1 G 2 7
100
3 Y2 Y1 6
4 A2 5
R9 GND
100
B U S B U F F
AV
DC SW
7.49V
Q414
EMD12
A
VOLTAGE
REGULATOR
IC416
S-812C31BPI-G
C454
1u
A
3.24V
*
R848
A A
*
R849
A A
15
21
9
I C 1
W 0 2 - 3 7 6 8 - 0 5
B C K 13
GND2 12
GND3
D 2 14 RF_IN 11
MoSI/CFG_CoM0
10
15
GND1
1 S S 3 8 8 F
MISo/CFG_CoM1
16 9
VCC_RF
+ CFG_GPS0/SCK
17
8
RESERVED2
RESERVED3
18 7
VDDUSB
SDA2
19
6
USB_DP
SCL2
20
5
USB_DM
TXD1
21 4
EXTINT0
RXD1
22 3
TIMEPULSE
V_BCKP
23 SS_N 2
VCC
1
24
RESERVED1
GND4
G P S M O D U L E
AW
NX-200(G)
DC SW
Q415
EMD12
A
R511 1k LED_G
LED_G
R512 100
/EMG
/EMG
R513 1k LED_R
LED_R
R514 1k
IFC
IFC
R515 1k
/SAVE
/SAVE
R516 100
I2CCK
I2CCK
R517 1k
/5TC
/5TC
R518 100
I2CSDA
I2CSDA
R519 1k
SBC
R520 1k /T_R
T_/R
R521 1k
TV2
TV2
R522 1k
ASSIST
ASSIST
R523 1k
TV1
TV1
R524 1k
VAGC
VAGC
C465
R525 1k
5RC
1000p 5RC
R526 1k
TCXO_MOD
TCXO_MOD
PGND
21 R527 1k
RSSI
RSSI
PGND
R528 1k
CV
CV
C466
AGND
6800p
A
NC
NC
+B
+B
+B
+B
NC
15
NC
AGND
A
R529 100 /PTT
/PTT
R530 100
Side_G
Side_G
R531 100
Side_1
Side_1
R532 1k
W_/N
W_/N
R533 100
SDO1
SDO1
R534 100
Side_2
Side_2
R535 100
/PCS_RF
/PCS_RF
R536 1k /DSW
9
DSW
R537 1k
APC
APC
R538 1k
/APCSW
/APCSW
VCO_MOD
R539 1k
VCO_MOD
R540 1k
THP
THP
R541 100
PLD
PLD
R550 0
38M
R543 100 SCK1
SCK1
GND
R544 1k
S_DET
15 S_DET
GND
NC
A
IF_DET
C480 R545
0.01u 100
C 8 R7 CN5
1 2
1 8 p
X53-4590-XX
-10 K
-11 K2
X53-459 10/10, X58-524 1/1
AX
CN404
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
R848 R849
0 NO
NO 0
89